CN102352877A - Insulation connecting lug for hydraulic ram - Google Patents
Insulation connecting lug for hydraulic ram Download PDFInfo
- Publication number
- CN102352877A CN102352877A CN201110352546XA CN201110352546A CN102352877A CN 102352877 A CN102352877 A CN 102352877A CN 201110352546X A CN201110352546X A CN 201110352546XA CN 201110352546 A CN201110352546 A CN 201110352546A CN 102352877 A CN102352877 A CN 102352877A
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- China
- Prior art keywords
- insulating bush
- metal collar
- hydraulic jack
- ring body
- earrings
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Abstract
The invention discloses an insulation connecting lug for a hydraulic ram, and the insulation connecting lug comprises a lug body (1) and is characterized in that the sharp end of the lug body (1) is provided with a mounting hole (4); the lug body (1) is successively provided with an insulation sleeve B (3), a metallic lantern ring (13) and an insulation sleeve A (2) from the sharp end; the insulation sleeve B (3), the metallic lantern ring (13) and the insulation sleeve A (2) are connected with the lug body (1) through the mounting hole (4); and the tail end of the lug body (1) is provided with a connection thread (5) connected with a piston rod (7). The insulation connecting lug has the advantages that secondary discharge can be prevented from occurring between a piston and the inner wall of a cylinder and between the piston rod and the hole wall of a frond cap in a discharge environment, therefore, the hydraulic ram is protected and the proper functioning of wind equipment is ensured.
Description
Technical field
The present invention relates to a kind of insulation and connect earrings, relate in particular to a kind of hydraulic jack insulation that is applied in the wind-power generating system and connect earrings.
Background technique
In wind-power generating system, generally adopt the wind-powered electricity generation tensioning hydro-cylinder to regulate the direction of facining the wind of wind electricity blade.The wind-powered electricity generation tensioning hydro-cylinder is installed in the wind electricity blade, through connecting part outward and being connected earrings and connecting, places the high-altitude.According to different wind directions, the oil cylinder piston bar drives piston and in cylinder body, is in axial sliding, to realize the adjusting of wind electricity blade to the direction of facining the wind.In oil cylinder, connection earrings, piston all connect as one through screw thread and piston rod, and front cover connects as one through screw thread and cylinder body.Exist friction pair between piston and inboard wall of cylinder block, piston rod and the front cover hole wall.Flexible and the sealing for safety action, what adopt between aforementioned two kinds of friction pairs is Spielpassung, and the very thin oil film of one deck is arranged between friction pair, in order to friction pair is lubricated and seals.
In the existing technology, whole cylinder is conducted electricity by made easily.At thunderstorm weather, thunder and lightning usually can be through connecting part and the connection that is connected earrings outward, and connected piston rod and piston are given in conduction.Because during the thunderstorm discharge, its electric current is big, voltage is high, this produces secondary discharge easily between piston and inboard wall of cylinder block, piston rod and front cover hole wall; Cause the oil film of sealing surface to puncture; The scorch of two friction pairs is damaged, cause scrapping of hydraulic jack, and bring harm.
Summary of the invention
The objective of the invention is to, provide a kind of hydraulic jack insulation to connect earrings.The present invention can avoid in discharge environment, between piston and inboard wall of cylinder block, piston rod and front cover hole wall, produces secondary discharge, has protected hydraulic jack, guarantees the proper functioning of wind power equipment.
For solving the problems of the technologies described above, technological scheme provided by the invention is following: a kind of hydraulic jack insulation connects earrings, and it is characterized in that: comprise ring body, the tip of ring body is provided with mounting hole; Ring body begins from the tip, is provided with insulating bush B, the metal collar and insulating bush A successively; Insulating bush B, the metal collar and insulating bush A are connected with ring body through mounting hole; The end of ring body is provided with connecting thread, and connecting thread is connected with piston rod.
Aforesaid a kind of hydraulic jack insulation connects in the earrings, and outer diameter and the mounting hole diameter of described insulating bush A and insulating bush B are complementary, and inner diameter and metal collar external diameter Conncetion cimension are complementary; Metal collar inner diameter with connect the part Conncetion cimension outward and be complementary.
Aforesaid a kind of hydraulic jack insulation connects in the earrings, and the big end endoporus of described insulating bush A and insulating bush B respectively has an end face seam, and the metal collar is located between insulating bush A and the insulating bush B, and with hole end surface seam location in the big end of insulating bush A and insulating bush B.
Aforesaid a kind of hydraulic jack insulation connects in the earrings, and described insulating bush A can be the combination of one deck insulating bush or multilayer insulation cover; Insulating bush B can be the combination of one deck insulating bush or multilayer insulation cover.
Aforesaid a kind of hydraulic jack insulation connects in the earrings, and the described metal collar can be the combination of the layer of metal collar or which floor metal collar.
Compared with prior art; The present invention is owing to installed insulating bush A, the insulating bush B with insulating property between the ring body and the metal collar; Avoided in discharge environment; Between piston and inboard wall of cylinder block, piston rod and front cover hole wall, produce secondary discharge; Protect hydraulic jack, guaranteed the proper functioning of wind power equipment.The present invention has simple in structure, the characteristics of good practical effect, and the mechanical transmission that can be used as in the discharge environment is used.
Description of drawings
Fig. 1 is a plan view of the present invention;
Fig. 2 is the schematic representation of assembling with hydraulic jack of the present invention.
Sign flag in the accompanying drawing does
The 1-ring body, 2-insulating bush A, 3-insulating bush B, 4-mounting hole, 5-connecting thread, 6-front cover hole, 7-piston rod, 8-oil-feed interface, 9-front cover, 10-cylinder body, 11-piston, 12-oil out port, the 13-metal collar.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment, but not as the foundation to the present invention's restriction.
Embodiment
A kind of hydraulic jack insulation connects in the earrings, as shown in Figure 1, comprises ring body 1, and the tip of ring body 1 is provided with mounting hole 4; Ring body 1 begins from the tip, is provided with insulating bush B3, the metal collar 13 and insulating bush A2 successively; Insulating bush B3, the metal collar 13 and insulating bush A2 are connected with ring body 1 through mounting hole 4; The end of ring body 1 is provided with connecting thread 5, and connecting thread 5 is connected with piston rod 7.The outer diameter of insulating bush A2 and insulating bush B3 and mounting hole 4 diameters are complementary, and inner diameter and the metal collar 13 external diameter Conncetion cimension are complementary; The metal collar 13 inner diameters with connect the part Conncetion cimension outward and be complementary.The big end endoporus of insulating bush A2 and insulating bush B3 respectively has an end face seam, and the metal collar 13 is located between insulating bush A2 and the insulating bush B3, and with hole end surface seam location in the big end of insulating bush A2 and insulating bush B3, in case it moves axially.Use the purpose of the metal collar 13 to be to increase hydraulic jack insulation connection earrings and to connect the scurf resistance between the part outward.
When assembling, as shown in Figure 2, the hydraulic jack insulation connects earrings and is connected with piston rod 7 through connecting thread 5, and piston 11 is connected with piston rod 7 through screw thread, and front cover 6 connects as one through screw thread and cylinder body 10.Oil-feed interface 8 and oil out port 12 are housed through being threaded on the cylinder body 10.Exist friction pair between piston 11 and cylinder body 10 inwalls, piston rod 7 and front cover hole 6 walls.Adopt Spielpassung between aforesaid two kinds of friction pairs, and the very thin oil film of one deck is arranged between friction pair, in order to friction pair is lubricated and seals.
Because insulating bush A2, the insulating bush B3 with insulating property has been installed between the ring body 1 and the metal collar 13, to have avoided in discharge environment, electric current is through connecting part and the connection that is connected earrings outward, and connected piston rod 7 and piston 11 are given in conduction.Thereby avoid between piston 11 and cylinder body 10 inwalls, piston rod 7 and front cover hole 6 walls, producing secondary discharge, protected hydraulic jack.
In the present embodiment, insulating bush A2 is one deck insulating bush, and insulating bush B3 is one deck insulating bush.The metal collar 13 is layer of metal collars.
In the present embodiment, insulating bush A2 also can be the combination of multilayer insulation cover; Insulating bush B3 also can be the combination of multilayer insulation cover.The metal collar 13 also can be the combination of which floor metal collar.
Claims (5)
1. a hydraulic jack insulation connects earrings, and it is characterized in that: comprise ring body (1), the tip of ring body (1) is provided with mounting hole (4); Ring body (1) begins from the tip, is provided with insulating bush B (3), the metal collar (13) and insulating bush A (2) successively; Insulating bush B (3), the metal collar (13) and insulating bush A (2) are connected with ring body (1) through mounting hole (4); The end of ring body (1) is provided with connecting thread (5), and connecting thread (5) is connected with piston rod (7).
2. a kind of hydraulic jack insulation according to claim 1 connects earrings; It is characterized in that: the outer diameter of described insulating bush A (2) and insulating bush B (3) and mounting hole (4) diameter are complementary, and inner diameter and the metal collar (13) external diameter Conncetion cimension are complementary; The metal collar (13) inner diameter with connect the part Conncetion cimension outward and be complementary.
3. a kind of hydraulic jack insulation according to claim 1 connects earrings; It is characterized in that: described insulating bush A (2) and insulating bush B (3) hold endoporus that one end face seam is respectively arranged greatly; The metal collar (13) is located between insulating bush A (2) and the insulating bush B (3), and with hole end surface seam location in the big end of insulating bush A (2) and insulating bush B (3).
4. a kind of hydraulic jack insulation according to claim 1 connects earrings, it is characterized in that: described insulating bush A (2) can be the combination of one deck insulating bush or multilayer insulation cover; Insulating bush B (3) can be the combination of one deck insulating bush or multilayer insulation cover.
5. a kind of hydraulic jack insulation according to claim 1 connects earrings, and it is characterized in that: the described metal collar (13) can be the combination of the layer of metal collar or which floor metal collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110352546XA CN102352877A (en) | 2011-11-09 | 2011-11-09 | Insulation connecting lug for hydraulic ram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110352546XA CN102352877A (en) | 2011-11-09 | 2011-11-09 | Insulation connecting lug for hydraulic ram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102352877A true CN102352877A (en) | 2012-02-15 |
Family
ID=45576506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110352546XA Pending CN102352877A (en) | 2011-11-09 | 2011-11-09 | Insulation connecting lug for hydraulic ram |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102352877A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152528A (en) * | 2016-03-05 | 2017-09-12 | 杨双来 | Hydraulic cylinder piston rod and earrings attachment structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2904670A3 (en) * | 2006-08-03 | 2008-02-08 | Tsung Yu Chen | Telescopic thermal insulation assembly for exercise machine, has axle sleeve enclosing axle and displaced with axle in telescopic manner to be displaced along body of oil pressure rod for insulating head of axle sleeve |
| KR20100067189A (en) * | 2008-12-11 | 2010-06-21 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Actuator of construction machine with generation function |
| CN101922482A (en) * | 2010-06-18 | 2010-12-22 | 无锡市海航电液伺服系统有限公司 | Novel tensioning oil cylinder |
| CN201874920U (en) * | 2010-12-03 | 2011-06-22 | 广州白云液压机械厂有限公司 | Novel insulating oil cylinder |
| CN202001427U (en) * | 2011-03-14 | 2011-10-05 | 徐州徐工液压件有限公司 | Axial-locating ear-shaped ring anti-loose structure with two top threads |
| CN202326511U (en) * | 2011-11-09 | 2012-07-11 | 中航力源液压股份有限公司 | Insulation joint earring of hydraulic cylinder |
-
2011
- 2011-11-09 CN CN201110352546XA patent/CN102352877A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2904670A3 (en) * | 2006-08-03 | 2008-02-08 | Tsung Yu Chen | Telescopic thermal insulation assembly for exercise machine, has axle sleeve enclosing axle and displaced with axle in telescopic manner to be displaced along body of oil pressure rod for insulating head of axle sleeve |
| KR20100067189A (en) * | 2008-12-11 | 2010-06-21 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Actuator of construction machine with generation function |
| CN101922482A (en) * | 2010-06-18 | 2010-12-22 | 无锡市海航电液伺服系统有限公司 | Novel tensioning oil cylinder |
| CN201874920U (en) * | 2010-12-03 | 2011-06-22 | 广州白云液压机械厂有限公司 | Novel insulating oil cylinder |
| CN202001427U (en) * | 2011-03-14 | 2011-10-05 | 徐州徐工液压件有限公司 | Axial-locating ear-shaped ring anti-loose structure with two top threads |
| CN202326511U (en) * | 2011-11-09 | 2012-07-11 | 中航力源液压股份有限公司 | Insulation joint earring of hydraulic cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152528A (en) * | 2016-03-05 | 2017-09-12 | 杨双来 | Hydraulic cylinder piston rod and earrings attachment structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120215 |